467152 Surfactant-Assisted Extraction of Lignan from Defatted Flaxseed with Micellar Solutions
Surfactant-assisted extraction of lignan from defatted flaxseed with micellar solutions
Tzu-Chieh Chen, Bing-Hung Chen*
Department of Chemical Engineering, National Cheng Kung University,
1 University Road, Tainan 70101, Taiwan
*e-mail: email@example.com (BHC)
Surfactant-assisted extraction of lignan from defatted flaxseeds was conducted using various edible surfactant solution as the extraction media. The flaxseed lignin is mainly composed of secoisolariciresinol (SECO) and secoisolariciresinol diglucoside (SDG). Both SDG and SECO are antioxidant and phytoestrogen abundant in flaxseeds. During the surfactant-assisted extraction procedure, the defatted flaxseeds were immersed and constantly agitated in surfactant solutions to extract lignan. Explicitly, the lignan of the defatted flaxseed was solubilized by micellar solution, from which aliquots were drawn periodically for HPLC-analysis to determine the content of lignin extracted. As a result, the extraction process mainly follows the kinetics of the first-order reaction. Among various surfactants used, Tween 20 gives the best extraction efficiency, followed by Tween 80.
Keywords: Flaxseed, Surfactant, Extraction, Lignan, Secoisolariciresinol, Solubilization.
Figure 1. Effect of extraction media to the extraction yield of lignin.
Extraction condition: (1) Temperature = 30 ¢XC, (2) Flaxseed : Extraction medium = 1 : 50 (w/v), (3) Duration = 1 day, (4) Surfactant concentration = 1 wt%.